Welcome To the Hoffman Amplifiers ForumApril 28, 2026, 04:02:30 pm | ||
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Screen resistor values?
Started by firemedic |
5 Replies
5780 Views |
by firemedic |
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New Project Ideas?
Started by ncusack |
4 Replies
4235 Views |
by phsyconoodler |
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Bill of Materials / parts lists
Started by simonallaway |
17 Replies
8479 Views |
by ckilgore |
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Junk Bin Tube Amp.
Started by DummyLoad |
10 Replies
6200 Views |
by jojokeo |
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AA165 circuit in a 5F6A chassis?
Started by Madison |
4 Replies
3908 Views |
by phsyconoodler |
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Anyone try polystyrene caps?
Started by dwp |
13 Replies
10293 Views |
by jojokeo |
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Vibrolux and twin reverb
Started by guitarhvac |
6 Replies
5005 Views |
by guitarhvac |
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23 Replies
18358 Views |
by HotBluePlates |
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3 Replies
5922 Views |
by navdave |
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33 Replies
17489 Views |
by Tone Junkie |
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Cathode Bias AB763?
Started by duke of earl |
7 Replies
7068 Views |
by chocopower |
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P600D Diodes
Started by plexi50 |
6 Replies
5415 Views |
by plexi50 |
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Fun weekend project - Tiny Giant
Started by jojokeo |
22 Replies
14396 Views |
by kagliostro |
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High voltages in Traynor Bassmaster
Started by Cups |
6 Replies
5224 Views |
by Cups |
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19 Replies
14313 Views |
by jjasilli |
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pots and input jack pictures question
Started by bakerlite |
10 Replies
7168 Views |
by sluckey |
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EL34 plate voltage
Started by Tone Junkie |
5 Replies
6630 Views |
by Tone Junkie |
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Need Peavey Classic 75 schematic
Started by markmalin |
2 Replies
4502 Views |
by markmalin |
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TOS Layout for review
Started by SLW |
7 Replies
5268 Views |
by kagliostro |
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What PI is this ?
Started by Mats |
5 Replies
3850 Views |
by Mats |
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2 Replies
3733 Views |
by Platefire |
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To choke or not to choke
Started by duke of earl |
13 Replies
23742 Views |
by duke of earl |
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Strange noise in Sunn amp
Started by SoundmasterG |
11 Replies
6986 Views |
by SoundmasterG |
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Marshall 18 Watt Lite
Started by sluckey |
13 Replies
7068 Views |
by RicharD |
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A yellow Deluxe gets done
Started by LooseChange |
17 Replies
6947 Views |
by HoodratShinobi88 |
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cathode bias question
Started by blues man |
5 Replies
5218 Views |
by jojokeo |
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JJ EL84s
Started by tubesornothing |
5 Replies
5277 Views |
by jeff |
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help identifying mystery amp
Started by elmore_lewis |
14 Replies
6066 Views |
by elmore_lewis |
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Problem with vibrolux bias
Started by guitarhvac |
8 Replies
6279 Views |
by sluckey |
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29 Replies
11968 Views |
by bakerlite |
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LongTail Pair Phase Inverter
Started by Jack1962 |
3 Replies
4000 Views |
by Jack1962 |
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18 Watt Lite iib phasing issue help?
Started by ncusack |
1 Replies
4545 Views |
by OldHouseScott |
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cathode biased Princeton Reverb trem ?
Started by worth |
13 Replies
9381 Views |
by Fresh_Start |
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IEC Receptical cut in chassis Question
Started by Platefire |
24 Replies
13353 Views |
by Fresh_Start |
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24 Replies
10390 Views |
by coreythompsonhm |
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Simple tonestack question
Started by firemedic |
26 Replies
10890 Views |
by firemedic |
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7 Replies
6942 Views |
by silverface |
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Bias Vary Trem, Cathode Biased Amp
Started by Boots Deville |
6 Replies
7962 Views |
by Boots Deville |
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Screen resistor values
Started by firemedic |
9 Replies
14240 Views |
by PRR |
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12v Heaters - 6V6's in series?
Started by LooseChange |
5 Replies
5329 Views |
by PRR |
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How to troubleshoot an amp before buying
Started by samato |
19 Replies
8149 Views |
by rafe |
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5F6-a Build Help
Started by Bassman720 |
3 Replies
4268 Views |
by bluesbear |
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Airline Reverb Unit schematic??
Started by LooseChange |
8 Replies
6212 Views |
by PRR |
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48 Replies
22238 Views |
by Ritchie200 |
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OT for 6aq5
Started by Tone Junkie |
2 Replies
3088 Views |
by Tone Junkie |
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Twin Reverb bias balance to bias adjust questions
Started by chuggy |
3 Replies
4392 Views |
by sluckey |
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2 Replies
4982 Views |
by tubeswell |
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AB763 Tremolo question
Started by G._Hoffman |
2 Replies
3221 Views |
by G._Hoffman |
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AC30 + (one tube) REVERB
Started by bakerlite |
11 Replies
7639 Views |
by tubenit |
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AB763 in a box?
Started by Searing |
6 Replies
4958 Views |
by thermion |
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